1994 JAGUAR XJ6 Workshop Manual

Fuel, Emission Control & Engine Management (AJ16)
. Reposition fuel feed pipe from fuel rail union and fit blanking plugs to rail and pipe.
Undo and remove regulator mounting bracket to inlet manifold bracket securing bolt (5 Fig.1).
. Undo fuel rail to regulator union nut.
. Reposition regulator from fuel rail union and fit blanking plugs.
/ 119 L66
Fig. 1
. Undo and remove fuel rail securing bolts.
. Remove fuel rail assembly (1 Fig.1) from manifold.
Fit blanking plugs to manifold.
. Drain the residual fuel from the fuel rail into a suitable drain tin.
Remove the injector retaining clips (2 Fig.1).
. Remove injectors (3 Fig.1).
. Disconnect vacuum hose from regulator.
. Remove regulator mounting bracket.
. Undo fuel rail to regulator union nut.
Remove regulator assembly.
Refit in the reverse order of the removal procedure.
0
0
0
0
Issue 1 August 1994 8 X300 VSM

Fig. 1
Remove
. Remove blanking cover (1 Fig.1).
. Release air cleaner cover retaining clips (2 Fig.1).
Remove filter element (3 Fig.1).
. Remove filter cover (4 Fig.1) from inner wing grommet.
. Depress retaining clip (5 Fig.1) and disconnect connector (6 Fig.1) from purge valve (7 Fig.1).
. Disconnect hose (8 Fig.1) from purge valve.
. Disconnect elbow (9 Fig.1) from front of purge valve.
Remove purge valve from mounting bracket (IO Fig.1).
Refit in the reverse order of the removal procedure.
X300 VSM 9 Issue 1 August 1994

Fuel, Emission Control & Engine Management (AJ16)
5.1.6 THROTTLE ASSEMBLY (SUPERCHARGED), RENEW
SRO 18.30.17 THROTTLE POTENTIOMETER
SRO 19.70.07 THROTTLE HOUSING GASKET
SRO 19.70.04 THROTTLE HOUSING
J 12-62 2
Fig. 1
Remove
. Disconnect battery.
. Remove the intercooler intake elbow.
. Raise vehicle on a four-post ramp.
. Remove the rear air duct to throttle body connecting hose.
Undo and remove bolts securing EGR supply pipe to manifold.
Remove EGR supply pipe gasket.
Reposition EGR sensor harness multi-plug from mounting bracket.
. Release throttle outer cable abutment from abutment bracket.
. Disconnect throttle inner cable from throttle linkage.
. Disconnect and remove return spring.
. Disconnect speed control actuator vacuum hose.
. Release cooling system pressure by slowly undoing the tank cap.
Tighten cap after pressure release.
. Remove abutment bracket assembly.
Disconnect idle speed actuator harness multi
-plug.
. Disconnect throttle potentiometer harness multi-plug.
. Fit pipe clamps to throttle housing cooling hoses and disconnect hoses from throttle housing.
Remove
the oil filter cartridge and gasket.
Remove speed control speed control bracket to throttle lever clevis pin and pin
circlip.
e
0
0
0
Issue 1 August 1994 10 X300 VSM

Fig. 1

Fuel, Emission Control & Engine Management (AJ16)
5.1.8
SRO
SRO IDLE
SPEED CONTROL VALVE/ GASKETS (NORMALLY ASPIRATED), RENEW
18.30.74 IDLE SPEED CONTROL VALVE
18.30.77 IDLE SPEED CONTROL VALVE GASKET
Remove
. Disconnect battery.
9 Remove the intake elbow to throttle housing hose.
Disconnect idle speed control valve multi-plug.
. Disconnect throttle potentiometer multi-plug.
. Remove clevis pin circlip.
. Reposition link arm from quadrant.
. Disconnect kick down cable (where fitted) from quadrant.
Open throttle fully and disconnect inner cable from quad-
Carefully release throttle against stop.
rant.
Fit pipe clamps
to throttle body heater feed and return
hose.
Disconnect feed hose from throttle body stub pipe.
rn Remove throttle body assembly from inlet manifold.
Remove idle speed control valve from throttle body.
. Remove gasket.
. Retrieve distance piece from throttle body recess. Fig.
1
Refit in the
reverse order of the removal procedure.
0
0
0
0
Issue 1 August 1994 12 X300 VSM

Fin. 1

0
0
14

SECTION CONTENTS
Subsection Title SRO Page
i .... .... . .... .. . PreliminaryPages ................. ......... .. . . .. . . . . .............. ....... ....... .. . . i
5.2.1 . . . . . . . . . . . . . Fuel System Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
5.2.2.. . . . . . . . . . . . General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5.2.3
. . . . . . . . . . . . . Fuel Rail / Pressure Regulator / Injectors, Renew . . . . . . . . . . . . . . . . . . . . 18.10.01
18.10.02
18.10.04
18.10.05
19.45.11
19.60.13
............. 5
5.2.4..
. . . . . . . . . . . Purge Control Valve, Renew . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.15.42
17.15.43
17.15.44
..... .. . . . . . . 8
5.2.5.
. . . . . . . . . . . . Idle Speed Control Valve/Gaskets, Renew . . . . . . . . . . . . . . . . . . . . . . . . . 18.30.72
18.30.73
18.30.74
18.30.75
18.30.76 ............. 9
5.2.6. . . . . . . . . . . . . Fuel Cut-off Inertia Switch, Renew.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.30.35 . . . . . . . . . . . . . 9
X300 VSM i Issue 1 August 1994